Japanese users answer surveys differently. They cluster toward neutral mid-scores, hesitate to give top or bottom ratings, and leave open-text fields blank. A literally translated NPS or CSAT survey will under-collect and mis-read your Japanese users. This article covers the scale design, request copy, timing, and 満足度 phrasing that actually earn responses in Japan.
When a SaaS product first runs its NPS or CSAT survey in Japan, the numbers almost always come back lower than the global average — often dramatically so. The instinctive product reaction is that Japanese users are unhappy, that the localization is failing, or that there is a feature gap. Usually none of these is the cause. The cause is the survey instrument itself colliding with how Japanese respondents use rating scales.
Japanese respondents exhibit a strong, well-documented tendency to cluster toward the center of any rating scale. Choosing a 10 out of 10 feels boastful and over-committal; choosing a 0 or 1 feels confrontational and rude. The socially comfortable answer is somewhere in the middle. The same person who would happily click 9 in the US version of your product clicks 7 in Japan — not because they like it less, but because 7 is the polite ceiling. This is not noise you can average away. It is a systematic shift, and it means a Japanese NPS read against your global benchmark will always look like a crisis when it is actually normal.
The second effect is on open-ended responses. Japanese users leave free-text fields blank far more often than users in many Western markets. Volunteering an opinion uninvited can feel presumptuous, and an open prompt with no boundaries gives the respondent no signal about how candid to be or how much to write. The result is a survey that collects clean quantitative data skewed toward neutral, and almost no qualitative data at all — the inverse of what most product teams want.
The Net Promoter Score travels poorly into Japanese on two levels. The first is the literal wording of the question. The second, deeper problem is the recommendation frame itself.
The canonical English question — "How likely are you to recommend us to a friend or colleague?" — translated literally lands as 友人や同僚に勧める可能性はどのくらいですか. This reads as abrupt and faintly interrogating. 可能性 (likelihood/probability) is a clinical word that frames the question as a measurement of the user rather than a request for their view. And the recommendation act carries more social weight in Japan: putting your name behind a product to a colleague implies you vouch for it personally, which raises the bar for a high score independent of how satisfied the user actually is.
Natural Japanese NPS copy softens the ask into polite です/ます form and reframes it around willingness and degree rather than probability:
The 0–10 scale itself should not be left as bare numbers. Anchor labels at both ends and ideally a neutral midpoint label give Japanese respondents a frame that reduces the gravitational pull toward the center. A common and natural anchoring is 0 = 全くそう思わない and 10 = 非常にそう思う, with the scale presented horizontally. Some teams add a light note under the scale clarifying that the answer will be used to improve the service (今後のサービス改善のために使わせていただきます), which both justifies the ask and lowers the stakes of giving an honest mid-range score.
Customer satisfaction questions hinge on one word: 満足度 (degree of satisfaction). The most common localization mistake is to render satisfaction as a binary — 満足ですか (Are you satisfied?) — which is grammatically fine but blunt, and forces a yes/no where a graded answer is wanted. The natural Japanese form asks about degree.
Just as critically, the answer scale must be labeled, not numeric. A 1–5 scale with no labels tells the Japanese respondent nothing about what counts as a 3, and the safe choice becomes the middle every time. Explicit labels remove that ambiguity and spread the responses:
| Scale Point | Recommended Japanese Label | Notes |
|---|---|---|
| Very satisfied | 非常に満足 | Top anchor. 大変満足 is an equally natural alternative in more formal products. |
| Somewhat satisfied | やや満足 | Standard. The やや prefix is the conventional Japanese survey hedge for the second tier. |
| Neither | どちらともいえない | The standard neutral label. Far more natural than 普通, which reads as a mild compliment in Japanese. |
| Somewhat dissatisfied | やや不満 | Standard mirror of やや満足. Keep the parallel structure across both halves of the scale. |
| Very dissatisfied | 非常に不満 | Bottom anchor. Pairs with 非常に満足 for a symmetric five-point scale. |
One subtle point: avoid 普通 as the midpoint label. In English, "neutral" or "okay" sits squarely in the middle, but the Japanese 普通 carries a faintly positive shade — it can read as "fine, no complaints," which nudges genuinely dissatisfied users into a non-negative bucket. どちらともいえない is the truly neutral midpoint and the one to use.
The single biggest lever on qualitative response rate in Japan is the wording of the open-text prompt. The default localization — ご意見をお聞かせください (Tell us your opinion) — is polite but collects very little, because it is unbounded. The user does not know how much to write, whether negative comments are welcome, or whether their input will matter. Faced with that ambiguity, most users close the field.
Response rates rise when the prompt does three things: narrows the task to something concrete, explicitly gives permission for critical feedback, and lowers the perceived cost of answering.
The phrase 改善できる点 (points that could be improved) does specific work: it reframes negative feedback as constructive contribution, which is socially much easier to give in Japan than blunt criticism. A user who would never write "this is confusing" will readily write 〜の画面が少し分かりにくいと感じました when the prompt has framed that as helping you improve. Pairing the prompt with a short reassurance — 匿名でお送りいただけます・1分ほどで完了します — removes the last hesitations about exposure and effort.
Even a perfectly worded survey fails if it appears at the wrong moment or asks in the wrong tone. Two conventions matter more in Japan than in many Western markets: when you interrupt, and how you acknowledge the interruption.
Showing a microsurvey in the middle of an active workflow reads as 邪魔 (intrusive) and depresses both the response rate and the user's goodwill toward the product. The safe triggers are after a task completes, at a natural pause, or just after a clear success state — the moment a report is exported, an invoice is sent, an onboarding flow finishes. The user has closure and a moment of slack, and an ask there feels considerate rather than disruptive.
Japanese request copy is expected to open by acknowledging that it is taking the user's time. This is not optional flourish — its absence reads as rude. A cushioning phrase such as お忙しいところ恐れ入りますが (I'm sorry to trouble you while you're busy) before the request is standard business etiquette and materially affects how the ask is received.
Finally, the dismiss control matters. A bare X in the corner is read as a curt "no escape but to close," and offering an explicit, polite decline option is both more courteous and, counterintuitively, raises completion: users who feel free to leave are more willing to start. Label the dismiss action あとで (Later) or 今はしない (Not now) rather than relying on an icon alone, and never re-prompt the same user aggressively — repeated asks erode the goodwill that careful copy was meant to build.
A Japanese Mini Audit reviews your in-app NPS, CSAT, and microsurvey copy for scale design, question phrasing, open-text prompts, request tone, and timing — with a prioritized fix list. Most products are under-collecting feedback and mis-reading the scores they do get.
Request a Mini AuditWhy do Japanese users give lower NPS and survey scores than users in other markets?
Japanese respondents systematically cluster toward the middle of a scale, a tendency well documented in cross-cultural survey research as central-tendency bias. Giving a top score like 10 out of 10 feels immodest, and giving a bottom score feels confrontational, so the safe social choice is the middle. A raw NPS pulled from Japan will read 10 to 20 points lower than the same product in the US for cultural reasons alone. The fix is not to translate the question more accurately but to interpret the scores against a Japan-specific baseline and to reword the anchors so the midpoint is not the only comfortable answer.
Should the NPS question be translated literally into Japanese?
No. The standard English NPS wording — "How likely are you to recommend us to a friend or colleague?" — translated literally becomes 友人や同僚に勧める可能性はどのくらいですか, which feels abrupt and slightly interrogating. The recommendation frame itself is also weaker in Japan, where people are more cautious about putting their name behind a recommendation. Natural Japanese NPS copy softens the ask with です/ます polite form and often reframes around 知人・同僚 and the degree of willingness: 同僚や知人にこのサービスをどの程度おすすめしたいと思いますか. The scale anchors should also be labeled, not left as bare numbers.
How should a satisfaction (CSAT) question be phrased in Japanese?
Use 満足度 as the core noun and phrase the question as a degree question rather than a yes/no. 今回のご利用にどの程度ご満足いただけましたか reads as natural, polite Japanese and invites a graded answer. Avoid the literal 満足ですか, which forces a binary and feels blunt. Scale labels should be explicit — 非常に満足 / やや満足 / どちらともいえない / やや不満 / 非常に不満 — because unlabeled numeric scales push Japanese respondents even harder toward the neutral midpoint.
Why do Japanese users skip open-text feedback fields, and how do you fix it?
A generic open prompt like ご意見をお聞かせください (Tell us your opinion) gets low response in Japan because it is too open — the user does not know how much to write, how candid to be, or whether negative feedback is welcome. Response rates rise sharply when the prompt is specific and gives permission: 改善できる点があれば教えていただけますか (If there is anything we could improve, would you let us know?) signals that critical feedback is wanted and frames a concrete task. Adding a short reassurance that the response is anonymous and takes about a minute also lifts completion.
When is the right moment to show an in-app survey to Japanese users?
Timing conventions are stricter in Japan than in many Western markets, where mid-task interruption is more tolerated. Showing a microsurvey in the middle of a workflow reads as intrusive (邪魔) and depresses both response rate and goodwill. Trigger surveys after a task is completed, on a natural pause, or after a success state, and always include a clearly visible dismiss option with polite copy such as あとで (Later) rather than a bare X. The request copy should acknowledge the interruption — お忙しいところ恐れ入りますが — which is expected etiquette, not optional politeness.
Scale design, NPS and CSAT wording, open-text prompts, request tone, and timing decide whether Japanese users answer honestly — or not at all. A focused QA review catches the issues before your data does.